Thrust-block.



A. DBBES. THRUST BLOCK.

APPLICATION FILED AUG. 8. 1910.

1,020,745. Patented Mar. 19, 1912.

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COLUMBIA PLANOGIIAPH 60-, WASHINGTON, D- C.

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V. A. DEBES.

THRUST BLOCK.

APPLICATION FILED we. 8. 1910.

1,020,745. Patented Mar. 19, 1912.

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UNITED STATES PATENT OFFICE.

VICTOR A. DEBES, 0F WILKINSBURG, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE COLONIAL TRUST COMPANY, TRUSTEE, OF PITTSBURGH, PENNSYL- VANIA, A CORPORATION OF PENNSYLVANIA.

THRUST-BLOCK.

Specification of Letters Patent.

Patented Mar. 19, 1912.

Application filed August 8. 1910. Serial No. 576.043.

To all whom it may concern Be it known that I, Vic'ron A. Dimes, a citizen of the United States, and a resident of lVill-1insburg, in the county of Allegheny and State 01'' Pennsylvania, have made a new and useful Invention in Thrust'll locks, of which the following is a specilication.

This invention relates to longitudinal adjusting means for rotor elements ot turbines, compressors, pumps, and similar apparatus; and has for an object to produce a simple and efiicient adjusting means for such rotor elements.

A further object is to produce a longitudinal adjusting device for rotor elements or rotatable shafts employing means such that the operation of adjusting is materially simplified.

These and other objects T attain in a turbine embodying the features herein described and illustrated in the drawings accompanying this application and Forming a part thereof.

In the drawings, Figure l is a 'lragmental transverse section of a device embodying my invention shown in connection with a It'ragmental elevation of a longitudinally adj ustable shaft. Fig. 2 is a section along the line 22 of Fig. 1.

In the drawings. I have shown an embodiment of my invention in connection with a rotatable shaft 3 and inclosed within a convenient housing at which may, it de sired, be secured to the housing of the shaft hearing. The shaft 3 is provided with a series of annular depressions or channels equally spaced along it and located near its end. Blocks 6 and 7 are respectively located above and below the shatt-3 and each block is provided with a series of semiannular pieces 8 which extend into the depressions 5 and cooperate with the ridges formed by the depressions. The blocks are so mounted that they can be moved longitudinally of the shaft for the purpose of adjusting its longitudinal position, and also for the purpose of holding it in the adjusted position. To this end, I provide a simple lever 9. fulcrumed at 10 on the housing or casing 4:. and engaging the block 6. and a second lever 11. fulcrnmed at; 12 on the easing and engaging the block 7. The end of the lower arm of the lever 9 is rounded and extends into a recess 13 formed in the block ti, and its upper end is engaged by a screw llwhich extends through the casing 4. The lower arm of the lever 11 is bifurcated so as to straddle the block (3 and its lower ends are rounded and engage lugs 15 formed on the sides of the block 7. The upper arm at the lever 11 is shown formed in two parts; this, however. is merely for the purpose of making the lever strong and at the same time light. The upper end of the lever is engaged by a screw 16 which 0X- tends through the casing t and is capable of actuating the lever and thereby moving the block 7. \Vith this arrangement, the block 7 can be moved in the direction 01 the arrow, shown in Fig. I, by means of the screw 16; and the block (3 can be moved in the opposite direction by means of the screw l t. lt will be apparent that the block 7 is capable of moving the shaft 3 in the direction ol the arrow, while the block (3 is capable ot resisting such motion and also of moving the shaft in a direction opposite to that indicated by the arrow.

The outer end of each of the screws 14 and it; is provided with a circular disk 17 by means of which the screws may be turned to t lill'erent positions. The edges of the disks 17 are milled and a suitable locking device 18 is 'irot'ided for each disk for locking it against rotation after the adjustment of the shaft has been made. Each device 18 consists of a key 19 mounted in a suitable way, on the casing 1, and is provided with a tongue 20 which is adapted to engage any one of the depressions termed by the milling in the edge of the disk 17. The key 19 is capable of being moved to differcnt positions along its way so that the tongue 20 can be withdrawn from engagement with the disk 17. After the shaft adjustment is made and the tongue 20 is in engagement with the disk, the key 19 is locked in place by means of a screw 21.

In adjusting the longitudinal position of the shaft, the blocks (3 and 7 are moved through the agency of their operating levers so that the semi-annular pieces 8 of the block (3 contact with ridges on one side of the channels 5 and the semi-annular pieces 8 of the block 7 contact with the ridges on the other side of the channels 5. The shaft is then moved to position by tightening up on one of the lever-actuating screws and loosening up on the other. By this means it will be seen that the shaft can be shifted longitudinally and at the same time held firmly in the adjusted position. Just sufficient tension is maintained on the screws 14 and 16 to hold the shaft in position without unnecessarily increasing the friction.

One of the novel features of my invention is the location of the screws 14 and 16, and the arrangement of the levers,9 and 11. In the apparatus disclosed, it will be apparent that one man can adjust the position of the shaft without unnecessary inconvenience, since each screw is convenient to one hand. In apparatus previously employed means have been utilized for usting the positions of the shafts or rotor elements, which employ adjusting screws, but the adjusting screw for moving the shaft or rotor element in one direct-ion has always been located on the opposite side of the shaft from the screw for moving it in the other direction. Such an arrangement is inconvenient since access cannot be had to both the screws at the same time; and where large elements are to be adjusted, it is sometimes necessary to employ two men to make the adjustment.

Having thus described my invention, what I claim is: I

1. In combination with a rotatable shaft, capable of longitudinal adjustment, two longitudinally movable adjusting blocks engaging said shaft, a lever engaging one of said blocks, means contacting with said lever for actuating said block, a second lever engaging the other block, and means contacting with said second lever for operating the second mentioned block, said means being located adjacent to said first mentioned means.

2. In combination with a rotatable shaft, capable of longitudinal adjustment, blocks engaging said shaft, a lever engaging one of said blocks, a screw contacting with said lever for actuating said block, a second lever engaging the other block and a second screw contacting with said second lever for actuating the second mentioned block, said screws being located on the same side of said shaft.

3. In combination with a rotatable shaft, capable of longitudinal adjustment, a casing around said shaft, adjusting blocks within said casing and engaging said shaft and movable longitudinally thereof, levers contacting with said blocks and projecting above said shaft, and means contacting with the upper end of said levers for actuating said blocks.

4. In combination with a rotatable shaft, capable of longitudinal adjustment, a casing around the shaft, adjusting blocks within said casing located above and below said shaft and movable longitudinally thereof, a lever fulcrumed on said casing and engaging one of said blocks, a second lever fulcrumed on the same side of said shaft on said casing and engaging lugs provided on the other block, and means extending through said casing and contacting with said levers for moving said blocks longitudinally of said shaft.

In combination with a rotatable shaft, capable of longitudinal adjustment, a casing around the shaft, longitudinally movable adjusting blocks located within said casing above and below said shaft, a lever fulcrumed on said casing and engaging one of said blocks, a second lever fulcrumed on said casing bifurcated to straddle said first mentioned block and to engage the other block, and means contacting with said levers for moving said blocks longitudinally to adjust the position of said shaft.

6. In combination with a rotatable shaft, capable of longitudinal adjustment, a casing around the shaft, longitudinally movable adjusting blocks within said casing and located above and below said shaft, a lever located on one side of said shaft and fulcrumed on the casing for engaging one of said blocks, a second lever fulcrumed on the casing on the same side of the shaft and bifurcated to straddle said blocks and to engage the second block, an adjustment screw extending through the casing for each lever, and means for locking said adjusting screw in the adjusted posltion.

In testimony whereof, I have hereunto subscribed my name this 4th day of Aug, 1910.

VICTOR A. DEBES.

itnesses B. B. I'IINES, IRENE VVOLFENDALE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

